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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Etroplinae
Etymology: Etroplus: Name from the words 'etron' meaning belly and 'oplon' for arms; referring to the spines on the lower side; that is, the long spinour anal-fin.
More on author: Bloch.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; brackvatten bentopelagisk; djupintervall 10 - ? m. Tropical; 23°C - 26°C (Ref. 2060); 11°N - 6°S
Western Indian Ocean: India and Sri Lanka.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 15.0  range ? - ? cm
Max length : 40.0 cm TL hane/ej könsbestämd; (Ref. 41236); common length : 20.0 cm TL hane/ej könsbestämd; (Ref. 6028)
Primarily found in brackish water but known to tolerate fresh or marine waters for short periods (Ref. 48490). Found in large rivers, reservoirs, lagoons and estuaries. Feed on filamentous algae, plant material and insects.
After spawning, about 500 eggs are laid and attached to a submerged log, rock or sometimes roots and weeds, in still or slow flowing water. Parents guard and fan the eggs until hatching, usually about 4 days. The fry shoal around their parents during the first weeks of growth. Parents refrain from feeding from the time of spawning until the fry become independent.
Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: kommersiell; Akvarium: Kommersiell
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.01106 - 0.02271), b=2.93 (2.83 - 3.03), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.9 ±0.26 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tm=2).
Sårbarhet i fisket (Ref.
59153): Low to moderate vulnerability (30 of 100).
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Näringsämnen (Ref.
124155): Calcium = 82.7 [5.9, 469.4] mg/100g; Iron = 1.21 [0.12, 15.99] mg/100g; Protein = 19 [16, 21] %; Omega3 = 0.286 [0.118, 0.663] g/100g; Selenium = 65.8 [5.5, 508.4] μg/100g; VitaminA = 8.04 [0.90, 68.44] μg/100g; Zinc = 1.55 [0.17, 16.82] mg/100g (wet weight); based on
nutrient studies.